Motor support



July 30, 1935. O NYSTROM 2,009,673

MOTOR SUPPORT Filed Nov. 23, 1951 k) efiror Oscar E Mg sTrom XW 7X. Climb/ 9 QWomegi Patented July 30, 1935 PATENT, OFFICE MOTOR SUPPORT Oscar P. Nystrom, Holland, Mich., assignor to Holland Furnace Company, Holland, Mich., a corporation of Michigan Application November 23, 1931,. Serial No. 576,709

4 Claims.

This invention relates to warm air furnaces and is more specifically concerned with a novel construction for effectively distributing the heated air in a furnace through the several warm air 5 outlet pipes therefrom, utilizing generally a fan in the upper part of the furnace casing driven by an electric motor which is supported independently of the furnace, whereby sounds caused by the motor are not amplified and carried through the warm air distributing pipes to the various rooms of the house in which the furnace is installed.

The present invention is an improvement upon and in part a continuation of my pendingapplication Serial No. 283,668, filed June 7th, 1928.

It is an object and purpose of the present invention to provide a mounting for the fan driving motor separate and unattached with respect to the furnace casing so as to disassociate the motor from said casing and not have the casing act as an amplifying and sounding board for the noises of the running motor, as is liable to occur where the motor is mounted directly on the easing, or is so connected to the casing that vibrational noises occasioned by the motor may be transmitted to said casing, amplified thereby and thus delivered through the warm air outlet pipes to the rooms.

A further object of the invention is to provide a motor mounting which is available for use and is of a practical and workable construction, irrespective of how close together the Warm air outlet pipes leading from the furnace may be, and have the motor shaft extend vertically above the motor and eliminate the unsatisfactory thrust bearing which has to be provided where the motor shaft extends downwardly from the motor, either vertically or at an angle to the vertical and support the weight of the motor, the motor in the present application having its housing directly carried by the main support for the motor and the motor bearings being relieved of any excess weight. A still further object of the invention is to provide a construction as noted which is of a very simple and practical nature and one which is particularly effective.

An understanding of the invention for the attainment of the ends stated, as well as many others not at this time enumerated, may be had from the following description, taken in connection with the accompanying drawing, in which,

Fig. 1 is an elevation, with a part of the furnace casing broken away, illustrating the installation of a warm air fan distributing construction in a furnace in accordance with my invention.

Fig. 2 is a plan view thereof.

Fig. 3 is an enlarged elevation of the motor and its mounting, taken looking at Fig. 1 from the right, and

Figs. 4 and-5 are horizontal sections and plans substantially on the planes of lines- 4-4 and 5-5 of Fig. 3. a Like reference characters refer to like parts in the different figures of the drawing.

The furnace may be of conventional construction wherein the firepot, combustion chamber, radiator and ash pit are enclosed by a sheet metal casing I; and from this casing at the upper end portion a plurality of warm air pipes 2lead outwardly and upwardly to various rooms in the house in which the furnace is installed. In the upper portion of and within the furnace casing a fan 3 is located, carried at the lower end of a vertical shaft 4 which extends upwardly through the top of the casing and onwhich a driven pulley 5 is secured above the casing to be driven by an endless belt 6. 'The belt 6, as later described, leads around a drive pulley on the shaft of an electric motor so that the fan may be continuously driven and in this manner substantially equally distribute the heated air tov rooms or to those rooms in which the registers are open so as to permit carrying of air through the pipes 2 thereto.

The motor which is to drive the fan is mounted on a support which is completely disassociated from the furnace casing. The support includes a vertical tubular post 1 preferably, the lower end of which is connected with a fixture 8 which in turn is permanently secured to the basement floor. In the upper end of the tubular post I a rod 9 maybe inserted and vertically adjusted within the necessary limits and held in any position to which adjusted by set screws as shown.

At the upper end of the rod 9 a horizontal plate It! is permanently secured. This plate'at its four corners has outwardly extending and diverging arms 18a. Also adjacent each end it is provided with a downwardly extending finger l I, and each of the arms Illa is formed with a recess at its upper side in which the lower ends of coiled compression springs l2 are received. A second horizontal plate I3 is located above the plate in and rests upon the springs l2. In addition tension springs I 4 are connected, one adjacent each end of the plate i3, and extend downwardly to connect at their lower ends with the fingers ll previously described. This forms a cushion or yielding mount for the plate l3 on and above which the electric motor is supported.

The plate I3 is provided with longitudinal slots [5 one adjacent and parallel to each side edge of the plate, through which bolts l5 pass upwardly and thence through an annular flange extending outwardly from a base I! to the motor l8. The motor accordingly may be adjusted to different positions in the length of the plate !3, thumb nuts screwing onto the upper ends of the bolts I6 above said flange.

The motor shaft l9 extends vertically from the motor and may go between any two closely adjacent warm air pipes 2. The shaft is held from undue vibration by a bracket arm 20 corrnected at its lower end to the motor housing and formed at its upper end with a bearing. through which the shaft passes. Two pulleys Z! and 22 of different diameters are secured at the upper end of the shaft E9 around one of which the endless belt 6 passes. It is evident that should the belt shown in Fig. 1 as around the lower and larger pulley 2| be changed'to the upper and smaller: pulley 22 the rod 9 maybe lowered the necessary amountand the motor shifted on its supporting plate 13 so as to maintairrthe belt with the necessary driving tension.

With. the construction described a very simple, practical and effective motor support and installation is provided disconnected from an entirely independent of the furnace casing I. The length oi the: shaft is above the motor I8 is such that with furnace pipes very close together, as happens many times, the shaft may extend between the pipes so as to bring its drive pulleys 2! or 22. above the plane of the top of the furnace casing and. yet the motorbe located below the lower sides of said pipes 2. The springs at Hand M serve to cushion the mounting of the motor and also provide a suitable tension upon the belt B.

All noises from. the motor which, with the motor directly secured to the furnace casing, would be magnified and transmitted to the rooms of the house are eliminated. The post and the plates.

l0 and 13 for carrying the motor occupy little space. The post is easily cut to length for the particular height that it should have in any furnace installation, it may be mounted closely adjacent to the furnace casing, and in every way there is provided an especially practical and effective construction for the purposes described.

The invention is defined in the appended claims and is to be considered. comprehensive of all forms of structure coming within their scope.

I claim:

1. In combination, a supporting post having a bases: ahorizontal plate, means for securing said plate onto the top end of the said post, said plate having four arms extending therefrom at its corners, each arm having a recess therein, each recess having a spring therein, a second horizontal. plate oi! sumcientsize to bear upon the said springs whereby it is supported thereon, a motor mounted upon said second mentioned plate and means: tor pulling the plates toward. one another. 2. A. combination. of elements as set forth in claim 1 in which said means for pulling. the plates together consists of. tension springs.

3. A combination of elements asset forth. in claim 1. in which the means securing the first horizontal. plate is rotatably and slidably mounted in the post forthe purpose described.

I 4- In a device of the character described, a plate of. substantially rectangular shape, means for supporting said plate, saidplate having arms extending outwardly at each corner thereof, springs on each of said arms, means for holding the springs in place thereupon, said. plate having downwardly extending; fingers at its opposite ends, a. second plate located. above the first plate and bearing upon the. springs, additional springs hooked onto the two fingers and means for fastoning the last mentioned springs ontothe sec-- and mentioned plate for the purpose described.

OSCAR P. NYSTROM, 

